Harry gould osburn



(No Modal.)

H. G. OSBURN. SEGONDARY BATTERY.

No. 414,438. Patented Nov 5, 1889.

UNITED STATES PAiENT FFlCE HARRY GOULD OSBURN, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF T O EUGENE Il. HILL,- OF SAME PLACE.

SECONDARY BATTERY.

SPECLFICATIONming part of Letters Patent No. 414,438, dated November 5, 1889. Application filed Aughst 23, 1889. Serial l Tm 321,721x (No modal.)

T aZZ w7wm it m'ay concern:

Be it known that I, HARRY GOULD Os- BURN, of Chicago, 000k county,lllinois, have invente d certain new and usefnl Improve ments in Electric Batteries, of which the following is a full, clear, and exact description,

, reference being had to the aecompanying drawings, and to the letters of referenee marked thereon.

My invention relates particularly t0 eleetrie storage-batteries, altliough it can in part or whole be applied to primary batteries, and its object is to improve and simplify the connections between each plate or grid of the of each eleetrode, whereby one or more of said plates may be removed from both or either electrode; and, fnrther, its object is to provide means for keeping separate and maintaining at their proper distance apart said plates, snbstantially as hereinafter fnlly described, and as illustrated in the drawings, in which- Figure 1 is a side elevation of my improved battery, showing the right-hand half thereof in vertical longitudinal section. Fig. 2 is a perspective view of an nsulating device used in conjunction therewith. Fig. 3 shows a perspective view et a part of the corner support. Fig. 4 is alongitudinal central section through one of my improved plates, and Fig. 5 shows a modified form of condnetors for each electrode.

In the drawings, A represents the metal condnctorplates of a battery, which are of rectangular or any other surface dimensions and are suitably constrncted to hold the active material. Each electrode is provided with a series of these plates, which are each 0 provided With alateral lngB projecting from it near one side, the legs of the plates ofthe negative eleetrode projecting from one side and the lugs of the plates et the positive eleetrode projecting from the opposite side, so that the plates of the same polarity may be connected throngh the medium of said lngs. The positive and negative electrodes are so arranged that the plates of each alternate with those of the other and are an eqnal distance apart. As it is desirable that the complementary set of metal conductor-plateS plates of each eleetrode shonld he of the same surface dimensions and that the negative plates shonld be within the area emb1aced Within the planes drawn at right angles to the edges of tige positive plates, and 5 5 vice versa, I recess or out away the edges of the plates at a opposite the lugs B, so that the lugs B of the plates of the opposing eleC- trode may pass up therethrough withont touehing.

In order to insulate and at the same time afford a support for the edges of the plate farthest from the luge, 1 provide the vulean ized rubber insulator sleeve 7), which surronnds the lngs B between the adjacent plates of sa1ne polarity, and which has its upper part reduced in diameter, so as to form a shonlder c, open which the free edges of said opposingplate rest, as shown. If desired, I can further secnre the plates in a given relative position by means et the corner-supports C 0, which preferably consist of a length corresponding to the depth of the cell, are rectangular in cross-section, and are provided at one angle with the lateral morti ses (Z (Z, into which the corners of the plates are inserted and fit snngly, as shown. In order to leave j ust as mach of the plates exposed as possible, I can groove the angle et the support 0, into which the mortises are out, as shown in Fig. 3.

The lugs B projeet adistanee corresponding to that between plates of the same polarity plus a slight distance that they enter a depression e in the side of the next plate 0pposite that from which the 111g thereof projects and concentflc with the center of the same. Passing centrally and longitudinally through the 111g of every plate, excepting possibly the plate nearest the bottom of the c oeil, is a eircular bore 1), the diameter of which nearest the extremity of the lug being greater than the remainder thereof. In the bore of each lugl place a conplingbolt E, the head of which fits snugly into that part of the bore D having the greatest dameter, and the barrel of Which passes down through the part of the bore having the lesser diameter, With its end, which is screw-threaded, extending below the plate. The head of each 11 of the coupling-bolts E is tapped centrally and longitudinally, and When secnring the plates of each electrode together the threaded end of each bolt s secured into the head of the bolt in the 111g et the plate adjacent theret0. These bolts are preferably made of cop-' In order that the soltion may not affect the lower end of the conductor made by the arrangement of bolts E, asdescribed, I do not make the bore D in the lugs of the lowermost plates of each electrode, but instead tap the outer ends thereof and then screw into it a plug g,which is itself tapped and into which the bolt E, passing through the lug of the next lowermost plate of each eleetrode, passes. In Fig. 5 of the drawings is shown a modified form of eonnectingbolt G, Which can be substituted for the bolts E. Its lower end is screwed into the plu g g in the lowermost plate of each electrode. The next plate et the same electrode is then placed in position, and then the nuthis screwed clown upon and into the enlarged part of the bore Of the lug of said plate. After each plate is added to the electrode a nut h is screwed down onto the same in the same manner until the electrode is completed. I prefer the use of bolrs E, however, as the removal of plates from the electrode is greatly facilitated.

In order to provide an appropriate cell-con neetion to use with my improved battery, I seeure to the top of the lug of the uppermost plate of each eleetrode the truncated eone f bymeans of the bolt F, which passes centrally through and is securely embedded in said cone and is screw-threaded at each end. The lower end of this bolt F is screwed into the tapped head of the uppeimost bolt E, and the upper end of the same is provided With a thumb-nut k, by manipulating whieh so as to clamp the connecting-wire between it and the cone assures a good contact.

What I claim as new is- 1. In an electric battery, the eombination, with the metal conductor-plates of each electrode having lugs B, of the insulator-sleeve b, surrounding said lugs and provided with a shoulder 0, which forms a support for the adjaeent edge of the alternating plate of the opposing electrode and insnlates the same from said lngs, as set forth.

' 2. In an electric battery, the metal eonduct or-platesA of the positive and negative electrod es, respectively, each provided with a latefallj -projecting lug B, through the medium 01: whieh plates of the same electrode are connected, in combination with the insulator sleeves b, surrounding said luge, and the corner supports C C, into which the angles of said plates enter and rest, as set forth.

4. In an electric battery, the metal conductorplates A 01" the positive and negative cleatrodes, respectively, each provided with alaterally-prejecting 111g B, through the n1edim of which plates of the same eleetrodeare connected, in eombination With a threaded bolt passing longitudinally through said lug and causing the lug of the plate adjacent to the side of one plate opposite that from which its respective lug projects to bear tightly aganst the same, as set forth.

5. In an electric battery, the metal conductor-plates A of the positive and negative-electrodes, respectively, each provided with a laterally-projecting lug B, through the medium of which plates of the same electrode are connected, in combination with a eouplingthe bolts E, having their heads tapped longi tu dinally and passing longitudinally through said lugs, and the tapped plugg, inserted into the end 01: the lug of the lowerrnost plate of each electrode and into which the lower end of the bolt E, passing through the lug. of the next lowermost plate of each electrode, enters.

HARRY GOULD OSBURN.

\Vitnessesz FRANK D. THOMASON, EUGENE H. HILL. 

